Glass-working apparatus



Sept. 13, 1927. 1,642,430

T. c. s'rr-:lMi-:R v

Y GLASS WORKING APPARATUS original File@ Feb.` 12, 1910 f ATTRNEYS.

Patented Sept. 13,1927. i

.I UNITED s'rA"1r.-sl

'rHnoDon c. sarai-una, nncnasiin.' tarn or 'Prr'rsi'anneia Pnmrsnvam; in*

CHARLES M. STEIMER, EXECUTOR, OF ZANESVILLE, CHIC, ASSIGNOB, BY um ASSIGNMENTS, T0 THE HARTFORD SPECIAL MACHINERY COMPANY, -A CORPORA- 'rioN oir coimncricnr.

GLASSf-WORKING APPARATUS.

original application -filed ,FebruaryA 12, 1910, Serial No. 543,582, and in Canada Januaryl 20, 101.8..

' Divided and this application `iilell Gctober 27, 1925. Serial No. 65,190.

, i The -invention herein claimed relates' to mechanism for fabricating pressed or blown articles from charges of molten glass, and is illustrated as ap. lied to a press for making tableware an the like.

The object is to improve the operation of glassware fabricating machines, more espe-` cially by providing improved drivin mechanism for turning a mold table stepyfstep to bring the molds carried by the table into successive working positions.

ig.' 3 is a horizontal section on the linel F (9 1n Fig. 1;

, ig. 4-is a detail showing in side elevatlon the shifting plungers in another position;

and

, Figs. 5 and 6 are details, respectively vertical section and side elevation, of certain parts of the driving mechanism for the table -of the press.

A main power, shaft 68 is mounted in Abearings 69 ofthe press frame 70 and carv-ries agear meshing with another ear 72 on a shaft 73 mounted in bearings 3l on the pivotedframe 74. This shaft 73 carries a cam 75 fortengaging the cross-head 76 ofl the main press plunger 77,v and the cross- .head 76 is .connected to or made integral with another cross-head 78 which is engagedby two cams 79 also keyed on shaft 73 and arranged to lift the cplunger 77. The plunger and cross-hea s are preferably counter-.weighted by weights W mounted on the frame 8'0which restsfupon the same base 7-0a as the ress frame 70 carrying the shaft 68. This aine 80 stands between the two side wings of the pivoted frame 74, as will appear from Fig. 2 and while'the frame 8O is stationary, just like the standard 70, the

ivoted at 68 and its lower or" `tailpo'rtion 4L rests against the stationary;-

frame "7 4 Ais standard 70. If there is induced any excess I pressure on the plun er 77, it will b seen that the plunger and its o erating cams andl shaft again all rise by li ing the frame 74 and rotatinl it around 68 as a center. It is held down owever, by its own weight and by the additional provision of a` lever .81 whose pivot 82 rests in hearings 83 on frame 70 and which has a hooked end engaging the tail of frame 74 to hold it against the standard 70. The lever 81 is graduated and has a sliding weight 84 by which to accurately regulate the limiting pressure of the plunger. pressure and treat all the articles alike in the presses, the plunger giving way even if there should be too much glass in the mold instead of crushing or crizzl' the glass.

The main plun er 77 carries integral with This enables me to avoid excess it a frame 85 w ich recipocates 1n guides 86 and 'has pivoted to its ttom, as'shown more clearly in Fig. 4), a supp ementary oscillating frame 87 which 'carries two'su plementary plungers 88' fixed on the rim These supplementary plungers Aare alternately brought in position over the molds M by the engagement o f a pair of integral arms 89 on frame 87, with cams 90 fixed on the bottom of the revolving table 91 ofthe press.'

This table 91 carriesany convenientnumber of molds M, and .it is moved in a step by step motion, on the Abearin plate 92 by means of a conical r` 93 ed inside -1t' and engaging a beve 1gear 94 on the shaft 95. This shaft 95 is operated intermittently by a pinion 96 engagin a vertically reci rof eating. rack 97'opera by a link 98 attac ed toawrist pin '99 on two discs 100 fixed on the shaft68. jIt will be understood that by the constant-rotation of these'l discs on shaft 68 the rack 97 yisfcontinuously reci rocate'd, and in order thatthe press tabe may be driven by shaft 95'a'lways in the same direction, I provide on the shaft. 95

a keyed disc 101 which carries a spring- A pressed retreating'bolt 102 en ging ,an in' clined slot 103 in the side oft e inion 96; this pinion 96 riding freely on s aft 95Vin one direction, but being enga ed by bolt 102 inthe opposite directionl an therebyiintermittenti' revolving the'shaft 95.

4It wil be understood that the4 mold table shown in Figs. l and 3, w en the tumbler T is ejected by the rising of a valve 104 whose stem Vhas a roller 105 at this time en aged with a cam track 106, fixed to the bed-plate 92 of the machine.

In the operation of the machine, each mold receives its charge of glass at a receiving position and thence it passes by reason of the revolution of table 91 in a step-by-step movement until the mold comes under one of the subsidiary plungers 88. The plun er is then depressed by cam 75, the pivoted 'rame 7 4 relieving the pressure at the pro r point,

and then the plunger being raise by cams 79. The subsidiary plungers 88 are alternated in successive molds. The stopping of the mold under the plunger is accomplished by the interruption of the travel b return of pinion 96 in its idle position as it is driven by rack 97. As the tumblercomes to the take-out position, it is ejected from the mold M by the stein of the valve traveling up the the track 106.

Variations may be made in theconstruction and arrangement of parts, within the scope of the appended claims.

I claim as my invention:

1. A machine for fabricating glassware comprising a rotatable mold table, a gear carried by said mold table, a driving gear rotatable on an axis dis laced from the axis of said mold table an -meshing with said first-named gear, and a reciprocable rack connected to rotate said driving gear intermittently in one direction.

2. A machine for fabricating glassware comprising a rotatable mold table, a gear secured to said mold table and movable concentrically therewith, a driving gear meshing with said first-named gear, a shaft displaced from the axis of said mold table and` carrying said driving gear, a pinion mounted uponsaid shaft, and a reciprocable rack adapted to impart intermittent rotation to sai shaft through said pinion.

3. A machine for fabricatin glassware comprising a rotatable. mold ta 1e, a `gear carried by said mold tablefand movable concentrically therewith, a driving gear meshing with said first-named gear, an loscillable toothed clutch member arranged" to swing upon the axis of said driving gear, a reciprocable rack bar meshing with saidtoothed Luanco upon the axis of said driving gear, a recip-l bar, and means for intermittently rocable rack bar meshing with said toothed clutch member, means for reciprocating said rack bar, and means for intermittently coupling and uncoupling said toothed clutch member and said driving gear so asto impart step-by-step rotation to said mold table,

the said coupling and uncoupling means comprising a clutch member associated with said driving gear and rotatable therewith, and a spring-pressed pin arranged to cause said clutch members to move together in one direction while permitting said toothed clutch member to move in the opposite dil rection without moving the other clutch member.

5. A glass shaping machine comprising a movable support, a plurality ofy molds carried thereby, a main pressing plunger associated with said molds, a member pivotally mounted on said lplunger for oscillator movement about a horizontal axis, a plura ity of subsidiary plungers carried by said member, and mechanism for oscillating saidrnember to alternately position said subsidiary. plungers in axial alignment with said main ilunger.

6; glass shaping machine comprising an intermittently rotatablatable, a series of molds carried thereby, a main pressing' plunger, a support carried by saidv main plunger. a` plurality of subsidiary plungers mounted on said support for oscillatory movement about a horizontal axis, and means actuated by the rotation of said table forswinging said subsidiary plungers alternately in axial alignment with said main plunger.

7. A glass shapingA machine comprising an intermittently rotatable table, a series of molds carried thereby, a mainY pressing plunger, a support, mounted on said main plunger for oscillatory movement about a orizontal axis, a plurality of subsidia plungers carried by said su port, a lura ity of cam surfaces carrie by sai table and adapted to swing said support to alternately position said subsidiary plungers in axial alignment with said main plunger.

with, a support mounted adjacent to said plunger, an arm pivotally mounted onsaid support, means carried by said.l arm for` actuating said plunger, and a latch mechanism for maintainingsaid arm and said plunger actuating means in operative position during the normal operation of said machine and adapted to yield in the event that said plunger encounters excessresistance during-the pressing operation.

9. A glass shaping machine comprising a mold, a pressing plunger associated therewith, a support mounted adjacent to said plunger, an arm pivotally mounted on said support, means carried by said arm for acj tuating said plunger, and a safety device for a mold, a pressing maintaining: said arm and said plunger actuatingmeans in operative position during the normal operation of said machine, and adapted to yield at a predetermined pressure.

10. A glass shaping machine comprising a mold, a pressing plunger associated there with, a support mounted -adjacent to said plunger, an arm pivotally mounted on said support, means carried by said arm for actuating said plunger, and a safety device for maintaining said arm and said plunger actuating means in operative "position during the normal operation of said machine and adapted to yield inthe event that said plunger encounters excess` glass in said mold, and means for varying the degree 'of pressure exerted by said plunger. K

11. A glass shaping machine comprising plunger associated therewith, a support mounted adjacent to said plunger, an arm pivotally mounted on said support, means carried by said arm for-actuating said plunger and a safety device..

for maintaining said arm and said'plunger actuating means in operative position during the normal operation of said'machine-A and adapted to yield in theevent that said plunger encounters excess glass in said mold, and means for adjustably determining the lpressure .required lto cause said safety device to yield.

12. A glass shaping machine comprising a mold, a pressing plunger associated thereactuating said pressin the pressure exerted on saidy with, a support mounted adjacent to said plunger, a shaft journaled in said support, an arm pivotally mounted on said shaft, a second shaft journaled in said arm, means carried by said second shaft for actuating said'plunger, and means for permitting said arm and said plunger actuating means to swing on said first-mentioned shaft to relieve pressure on said plunger in the event of excess glass in saidmold.

13.,A glass shaping machine comprising a mold, a pressing plunger associated therewith, a support mounted adjacent to said plunger, a shaft journaled in said support, an arm pivotally mounted on said shaft, a second shaft journaled in said arm, means carried by said second-mentioned shaft for o' plunger, and latch mechanism for releasaily maintaining said arm and-*said actuating means in operative position during the normal operation of said machine and-'adapted to yield to relieve plunger by said actuating means when a' 'predetermined pressureis reached.

14. A.- glass shaping machine comprising a mold, a pressing plunger associated there,- With, a sup ort mounted adjacent to said plunger,l vla s aft journaled in said support, an arm 4pivotally mounted on said shaft, a second. shaft ournaled in said arm, means carried by said second-mentioned shaft for aetuatingsaid pressing plunger, means for driving .said first-mentioned shaft, 'j intermeshing gears fixed to each of said shafts for operati means for re easably maintaining said arm and said plunger actuating means in operof the machine.

15.' A` glass shaping machine comprising a mold, a pressingA plunger associated therewith, a support |mounted adjacent to said" to said plunger to relieve pressure exerted thereon. by said actuating means when a pre, c'letermined` pl'i'ssure .is ,reached f 7? C RIES M. STEIMER,

Theodore C'. Steamer, deceased.

j said actuating means, andl f ative position during the ynormal operation means carried by said arm for aci `'tuatinjgg' said pressing plunger, 

